The Password-Database module
Synopsis

`Module Name:` pam_pwdb `Author:` Cristian Gafton <gafton@redhat.com> and Andrew G. Morgan <morgan@kernel.org> `Maintainer:` Red Hat. `Management groups provided:` account; authentication; password; session `Cryptographically sensitive:` `Security rating:` `Clean code base:` `System dependencies:` Requires properly configured `Network aware:`

Overview of module

This module is a pluggable replacement for the `libpwdb`.

Account component

`Recognized arguments:` `Description: The `Examples/suggested usage: In its accounting mode, this module can be inserted as follows: # # Ensure users account and password are still active # login account required pam_pwdb.so``

Authentication component

`Recognized arguments:` `Description: The `The default action of this module is to not permit the user access to a service if their When given the argument `The argument, `nodelay`, can be used to discourage the authentication component from requesting a delay should the authentication as a whole fail. The default action is for the module to request a delay-on-failure of the order of one second.```

Remaining arguments, supported by the other functions of this module, are silently ignored. Other arguments are logged as errors through `A helper binary, `pwdb_chkpwd`, is provided to check the user's password when it is stored in a read protected database. This binary is very simple and will only check the password of the user invoking it. It is called transparently on behalf of the user by the authenticating component of this module. In this way it is possible for applications like xlock to work without being setuid-root.`

The `likeauth` argument makes the module return the same value when called as a credential setting module and an authentication module. This will help libpam take a sane path through the auth component of your configuration file. `Examples/suggested usage:` The correct functionality of this module is dictated by having an appropriate `/etc/pwdb.conf` file, the user databases specified there dictate the source of the authenticated user's record.

Password component

`Recognized arguments:` `Description: This part of the `In the case of conventional unix databases (which store the password encrypted) the `The `The argument `The `The `Examples/suggested usage: An example of the stacking of this module with respect to the pluggable password checking module, `````````

Session component

`Recognized arguments:` `Description:` No arguments are recognized by this module component. Its action is simply to log the username and the service-type to `Examples/suggested usage: The use of the session modules is straightforward: # # pwdb - unix like session opening and closing # login session required pam_pwdb.so`